Operation Manual

Stitch
selection
table
The
values
set
for
thread
tension,
stitch
length,
needle
size,
and
the
differential
feed
setting
(788)
are
only
basic
settings
that
have to
be
varied
according
to
the
application,
i.e.
to
the
type
of
fabric,
the
fabric
thickness,
and
the
thread
used.
The
sewing
foot
must
be
selected
according
to
the
seam
width
(see
ill,
at
right).
The
differential
feed
setting
depends
on
the
type
of
fabric
sewn
(see
p.
22).
For
all
2-thread
seams
and
for
the 2-needle
3-thread
overedge
closing
seam
the
slide
of
converter
41
(HL
788)
must
be
set at
position
A.
For
HL
787 the
converter
is
available
as
a
special
accessory
part (see
p.
42
and
46).
Fabric
Needle-System
Stitch
type
(see
table
Needle
thread
Looper
thread
130705
H
on
p
20)
tension
tension
15
x
1
H
biue
green
red
yellow
A
B
2-thread
overedge
seam.
narrow
2-thread
fiatock
light
—
2
--
2
5earni
-K
medium
—
2
-i-
2
heavy
N
+3
2-ihread
overede
seam,
wide
2-thread
flahock
light
—
5
I
+
1
seam
medium
—5
+1
Size
heavy
-4
+
2
2-thread
serging
seam
without
edge
thread
light
+
2
N
narrow)
Size
e=a.wsw=
medium
+
2
N
90
Q
14
heavy
+3
N
2-thread
sergirig
seam
without
edge
thread
light
-
2
—
1
wide)
Size
medium
—
2
—
1
90
£:,.
1
4
heavy
—1
—1
34